I’m not sure it’s the “best” way, but it’s a solid alternative, and receives rapid updates when YouTube moves to break things.
cross-posted from: https://lemmy.today/post/15571129
I’m using this all the time myself. There is no login to YouTube required and it supports adding subscriptions and doing everything important you can do on YouTube.
And the best part is no ads whatsoever.
It’s using the YouTube API, so that makes sense. The developer likely wants to keep the app focused and reduce the amount of feature creep, hence reusing YouTube’s standard subscription and list systems rather than building their own. That’s also what the majority of users expect - if someone subscribes to a YouTube channel on one device, they’d expect to be subscribed to it on all devices.